Contains articles on digestive enzymes in grasshoppers; bird and badger observation; reactions between hydrochloric acid and sodium carbonate solutions; observing the migration of ions; pupil's heating skills (Bunsen burners); photolysis experimentation; capillary kinetics; experience with trireme; connection circuits; special relativity; a…

Contains papers on a process-based assessment scheme for the age range of 9-16, a graded-assessment scheme, individual learning through supported self-study, recording systems for student's learning, and a process-based assessment scheme for a Year-1 science course. (YP)

Evaluated the effects of cooperative learning on students' (n=36) verbal interaction patterns and achievement in a conceptual change instructional model in secondary science. It was found that students using cooperative-learning strategies showed greater achievement gains and made greater use of specific verbal patterns believed to be related to…

Analysis of data taken from three qualitative studies, reveals that three secondary science teachers' classroom literacy practices were influenced by their philosophies and beliefs regarding teaching and discipline knowledge. (Contains 47 references.) (ZWH)

Using science from the classroom, a teacher involves students in variety of explorations to identify safe foods from outdoors. These activities culminate in a Wild Plant and Beast Feast day, where the students have an opportunity to share their new cuisine and recipes with classmates and teachers. Tips on the successful development and…

Using socks with colored bands, a teacher makes mitosis and meiosis fun and meaningful for students. Asserts that during extension activities students used the aforementioned exercise as a springboard to better understand the phases of the cell cycle of Allium root tips, whitefish blastula, and Lillium anthers. (ZWH)

Examines analogical reasoning in contexts where understanding is generated from loosely organized, incomplete prior knowledge rather than transferred from a well-structured domain of understanding. Participants, consisting of 11 secondary school science teacher candidates, were presented with a piston/cylinder device and asked to explain the…

Reports on one rigorous evaluation and search for desired components of a science methods course at a large state university. Student evaluations of assignments are used to rate them for effectiveness. Provides a model for other instructors interested in course evaluation. (LZ)

Examines the question of whether variables associated with middle school classroom practices and instructional emphasis would contribute to a prediction of science course placement in later grades. Concludes that what happens in early schooling does have a direct and substantive impact on later education. (ZWH)

Presents an alternative to the use of a radar to determine how fast an individual can serve a tennis ball. Equipped with a tape recorder and a Macintosh computer, students determine the velocity of a tennis ball by analyzing the sounds and echoes heard on the court. (ZWH)

Eighteen year-11 physics students were taught heat and expansion of liquids using a predict-observe-explain sequence. Argues that the data demonstrate how students' prior knowledge and beliefs can affect their observations and interpretations of new learning. (Author/MKR)

Discusses 5 innovative experiments conducted by Rutherford in early 1900s utilizing the 30 milligrams of radium salt he personally carried from Europe to Canada in 1903. Traces his work with alpha particles from his original results which determined their nature, charge, and mass, to his technique of backscattering which helped to advance…

Describes techniques and equipment which allows school microscopes to perform crossed-polarized light microscopy, reflected light microscopy, and photomicrography. Provides information on using chemicals from a high school stockroom to view crystals, viewing integrated circuits, and capturing images on film. Lists possible independent student…

Describes a high school biology assignment that had students read a self-selected book where the main character experiences nature and is changed by it. Evaluation was based on journal entries and a formal paper. Seventy percent of the students indicated they greatly enjoyed the assignment. (PR)

Presented are 13 concepts considered important in estuarine education. These concepts were chosen by a panel of professionals in estuarine education, research and management. Included are the study methods, results, and implications for science education. (KR)